Colonel Bantry and his wife Dolly live in a grand old house outside a small village. Nothing ever happens there. Imagine their surprise when one morning they are woken by their maid who tells them that the body of a girl has been found in their study. Who is she? And how did she end up on their rug? Dolly asks her friend Miss Marple to help discover the truth - can she help explain this mystery and clear Colonel Bantry's name?